Simply buy Socket set, 1/2 inch square drive, imperial 20 pieces 20 | Hoffmann Group
Square Head Sockets for Square Head Bolts
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TEKTON 3/8 in. Drive Triple Square and 1/2 in. Drive TR Triple Square Bit Socket Set with Rail (11-Piece) (M4-M12, MT14-MT18) SHB99100 - The Home Depot
Performance Tool® W38965 - 1/4" and 1/2" Drive Metric Triple Square and Triple Square (TR) Impact Bit Socket Set (9 Pieces) - TOOLSiD.com